14a Unhappy time for a bull (5) s - u - p
26a On has a lot of fun with it (4) - n - t
27a A fresh run on the daily presses (9) - - - s - r - - -
5d Weeds are found in the back-street (5) t - r - s
7d Close in an attack (4) r - i -
23d You might say it when offering a gift, or present (4) - e - -
24d Pronouncedly mean manner (4) m i - -
14a slump (a "bull" is someone who trades in stocks, so a slump would see his stocks fall... cryptic definition)
26a looks like Unit = [f]un + it.
27a newsprint = new + sprint
7d ought to be raid, can't see why though
23d here (two meanings.)